ASTM B930-03(2008)

    Standard Test Method for Rating Grain Size and Frequency of Abnormally Large Grains in Cemented Tungsten Carbides (Hardmetals)

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    1. Scope

    1.1 This test method describes a procedure for measuring abnormally large grains and the frequency of those grains in cemented tungsten carbides (hardmetals).

    1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    B243 Terminology of Powder Metallurgy

    B406 Test Method for Transverse Rupture Strength of Cemented Carbides

    B657 Guide for Metallographic Identification of Microstructure in Cemented Carbides

    B665 Guide for Metallographic Sample Preparation of Cemented Tungsten Carbides


    ICS Code

    ICS Number Code 77.160 (Powder metallurgy)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/B0930-03R08

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